51200451420420 has 48 divisors (see below), whose sum is σ = 143488244914560. Its totient is φ = 13641360289536.

The previous prime is 51200451420397. The next prime is 51200451420451. The reversal of 51200451420420 is 2402415400215.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377851152 + ... + 377986631.

It is an arithmetic number, because the mean of its divisors is an integer number (2989338435720).

Almost surely, 2^{51200451420420} is an apocalyptic number.

It is an amenable number.

51200451420420 is an abundant number, since it is smaller than the sum of its proper divisors (92287793494140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51200451420420 is a wasteful number, since it uses less digits than its factorization.

51200451420420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755838924 (or 755838922 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 51200451420420 its reverse (2402415400215), we get a palindrome (53602866820635).

The spelling of 51200451420420 in words is "fifty-one trillion, two hundred billion, four hundred fifty-one million, four hundred twenty thousand, four hundred twenty".